Originally developed for early adoption work with ISVs, it is now available to all.

You can download the entire training kit from the download center here: http://go.microsoft.com/?linkid=7602397. The kit is just over 120MB compressed. After downloading the kit, simply run the installation program to extract the contents to your local machine. Once the installation process is complete, you will see an HTML page that allows you to navigate through the contents of the kit.